Stone rake



W. M. MCLEOD STONE BAKE Filed Aug. 2i 1923 V2 sheets-sheer l INVENTOR.

WM /Vfavd Oct. 14 1924. 1,511,292

w. M. McLEoD n STONE BAKE Filed Aug. 21, 1923 2 Sheets-Sheet. 2

INVENTOR.

To all whom t may concern.'

Patented Oct. 14, 1924.

WIIIIAI I. IGLEOD, Ol' IONTE VISTA, COLRADO.

STONE BAKE.

Application med Anmut 21, 1923. Serial No. 858,579.

Be it known that I, WILLIAM M. MoLnon,

a citizen of the United States, residing at Monte Vista, in the countyof Rio Grande and State of Colorado, have invented certain new anduseful Improvements in Stone Rakes, of which the followin is aspecification, reference being had to t e accompanyin drawings.

. 'is invention relates to certain improvements in stone rakes and it isprimarily an object of the invention to rovide a novel and improveddevice of this general character adapted to be attached to the graderarms or brackets of a scraper or scarifier of a conventional type.

It is also an object of the invention to provide a novel and improveddevice of this general character which is adapted tocoact with ascarified or lowed ground to remove the oversize gravel) or rock whichhas become loosene An additional object of the invention is to provide anovel and improved device of this general character whereby the oversizegravel or rock removed thereby is deposited along the banks of the gradewhere the stones will serve to prevent erosion of the bank but when therake is employed for removing stones or the like from a plowed eld thestones or the like will be deposited in windrows so that the same can bereadily forked or shoveled into wagons.

Another object of the invention is to provide a novel and improveddevice of this general character comprisin a plurality of teeth adaptedto penetrate t e ground to be treated and wherein the teeth have theirside faces in line with the line of draft o'r the device to ermit theundersize avel or stone to free y pass between the test the forwardfaces of the teeth being oblique with res ect to the line of draft tofacilitate the disc arge of the oversize at one end of the rake. l

Furthermore it is an object of the invention to rovide a novel andimproved device of is general character comprising a plurality of vteethdisposed on a downwar and forward incline to facilitate the raising ofthe oversize stone or the like below the surface of the ground beingtreated, together with a mo dboard associated with the upper. portionsof said teeth to facilitate the deposlt of the oversize stone or thelike at one end of the rake. i

. grader It is also an object of the invention to provide a novel andimproved device of this eneral character supported, when in workingposition, for swinging movement in a vertical direction and comprising aplurality of teeth adapted to engage the ground to be treated togetherwith means for adjusting the device about its axis whereby the extent ofpenetration of the teeth may be regulated.

The invention consists in the details of construction and in thecombination and arrangement o the several parts of my improved stonerake whereby certain important advantages are attained and the devicerendered simpler, less expensive and otherwise more convenient andadvantaneous for use, as will be hereinafter more ull set forth.

T e novel features of my invention will hereinafter be definitelyclaimed.

ln order that my invention may be the better understood, l will nowproceed to describe the same with reference to the accompaiiyingdrawings, wherein Figure 1 is a view in side elevation ot a or scariyingmachine of a conventional type having applied thereto a rake constructedin accordance with an embodiment of my invention;

Figure 2 is a diagrammatic view in top plan of my improved rakeillustrating its preferred position with respect to the line of draft ofthe machine; d

Figure 3 is an enlarged fragmentary view partly in section and partly inelevation of my improved rake an an associated moldboard arm or bracket,a second position of the device being indicated by broken lines;

Figure 4c is an enlar ed fragmentary view in front elevation of tie rakeas herein disclosed;

Figure 5 is a fragmentary view partly in section and partly in top planof my improved rake as herein set forth; u

Figure 6 is an enlar ed Jragmentary view partly in section an partly inelevation illust-rating an attaching means coacting d with the moldboardcomprised in the rake as herein disclosed.

As disclosed in the accompanyin drawings, 1 denotes the depending modboard arms or brackets of a. type used in connection with the grader orscarifying machine of a. conventional ty and with which m improved rakeis a apted tobe employ it being understood that In improved rake isadapted to be snbstituted7 for the ground working element of the graderor scarier.

My improved rake as herein disclosed comprises an elongated beam Bsubstantially H-shaped in cross section and which is provided adjacenteach end portion with the lug 2 bolted or otherwise anchored to the beamB, said lug 2 being pivotally connected as at 3 with a grader arm orbracket 1 whereby the rake in its entirety, when in applied position, issupported for swing# ing movement in a vertical direction. The beam Bwhen in applied position is also disposed on a predetermined angle withrespect to the line of draft of the machine.

The forward anges 4 of the beam B at points spaced longitudinallythereof are provided with the notches 5 and engagin within each pair ofvertically space notches 5 is a shank 7 of a tooth 8, said tooth 8 beingdisposed on a downward and forward curvature and said tooth is alsorhomboid in form in cross section with its side faces in line with theline of draft of the machine and with its outer or working face disposedon substantially the same degree of inclination as the beam B. The tooth8 is also disposed on an inclination in a direction-.lengthwise of thebeam B of about with respect to the beam so that said tooth will bedisposed substantially straight ahead when the rake is in applied orworking osition.l

The cross sectional co guration of each of the teeth 8'permits undersizerock or the like to freely pass between 'adjacent teeth while theforward faces of said teeth serve to push or draw the oversize rock orthe like toward one end of the rake.

Overlying the forward face of the beam B and secured theretoy by thebolts 9 or the like isa moldboard 10, said moldboard having its outerface Hat and unobstructed and the lower marginal portion of saidmoldboardV 10 has extending downwardly and in wardly there-from anges orlugs 11, each of which is disposed between a pair of adjacent teethv. ltis also to be noted that the shank 7 oi each of the teeth 8 is inwardlyoffset with respect to the tooth proper whereby a shoulder 12 isprovided for Contact with the lower marginal portionof the moldboard 10,whereby positive means are provided for holding said tooth againstupward movement. l

Each of thearms or'brackets 1 is provided with a laterally disposed lug14 through which is disposed an elongated sleeve lterminating beyondopposite sides oi the lug 14. Extending freely throughthe sleeve 15 isan elongated threaded shank 16 having one end portion operativelyconnected as at 17 with lthe upper portion of the inoldboard 10.Threaded upon the shank 16 and coacting with the opposite ends of thesleeve 15 or more particularly an interposed washer 18 are .the locknuts 19 whereby the shank 16 is maintained in desired adjustment withrespect :to the sleeve 15. Arranged at opposite sides of the lug 14 andinterposed therebetween and the washers 19 are the compression springs2O herein disclosed as encircling the shank 16. These springs 20 serveltol normally maintain the rake in desired position yet permit yieldableswinging movement thereof especially when the teeth 8 come into -contactwith the undue resistance such as an extra large rock or the like.

In practice, my improved rake is adapted to be drawn over scariiied orplowed ground with the teeth 8 penetrating said ground to a desiredextent. -As the teeth come into contact with 'oversize rock or' thelike, the same will be lifted to the surface and brought into contactwith the moldboard 10 but when it is desired that the teeth 8 shall workonly upon the surface of the ground, each of the Shanks 416 is adjustedforward- ,ly whereby the teeth 8 land the moldboard l() will be movedrearwardly as indicated by broken lines in Fi re 3.'

I employ each of t e sleeves 15 in come nection with each of the Shanks16 to protect from the springs 20 the threads of said shank and also toprotect the edges of the lug 14 defining the opening through which thesleeve'15 1s disposed.

The inclination of the applied rake is such that'when the device 1semployed in connection with a scarified road the oversize rock willbedeposited along the banks of the grade where such oversize rock willserve to prevent erosion of the banks. When the rake is employed :forremoving oversize stones or the like from a plowed field,

the rake will draw such oversize stonesinto windrows where they can bereadily forked or shoveled into wagons.

, susceptible of some change and modification without departin from theprinciples and spirit thereof an for this reason I do not Wish to beunderstood as limiting myself to thel precise arrangement and formationof the several parts herein shown in carrying out my invention inpractice except as hereinafter claimed. y

1. A rake of the class described comprising a beam, teeth operativelysupporte by said beam and extendin therebelow, each of said teeth beingrhom oidal in cross sec- 2. A. rake of the class described comprisl inga beam, teeth operatively supported by the beam and depending therefrom,and a moldboard extending along the beam and above the teeth, saidmoldboard being provided with inwardly disposed anges extending betweenadjacent teeth.

3. In combination with a portable body, a beam disposed therebeneath,means for pivotally connecting the beam with the portable body, teethoperatively engaged with the beam and de ending therefrom, a moldboardoperative y engaged with the beam above the teeth, and a yieldableconnection between the moldboard and body, said beam being disposed atan an le with the line of draft of the body, the si e faces-of the teethbeing in line with the line of draft of the body.

4. In combination with a portable body, a beam disposed therebeneath,means pivotally connecting the beam with the portable body, teethoperatively engaged with the beam and depending therefrom, a moldboardoperatively engaged with the beam above the teeth, and a yieldableconnection between the moldboard and body, said beam being disposed atan angle with the line of draft of the body, the side faces of the teethbeing in line with the line of draft ofthe body, said teeth beingangularly disposed with respect to the axis of the beam.

5. In combination with a portable body, a beam disposed therebeneath,means for .pivotall connecting the beam with the portable bo y, teethoperatively engaged with the beam and depending therefrom, a moldboardoperatively engaged with the beam above the teeth, and a yieldable.connection between the moldboard and body, said beam being disposed atan an le with the line of draft of the body, the side faces of the teethbeing in line with the lineof draft of the body, said teeth beingdownwardly and forwardly curved.

6. In combination with a portable body, a' beam carried thereby, teethoperatively supported by the beam and extendmg therebelow,l each ofsaidteeth being rhomboidal in cross section, the side faces of the teeth`being in line with the line of draft of the body.

In testimony whereof I hereunto alii", my

signature.

` WILLIAM M. MGLEOD.

for v

